Your child may be diagnosed with failure to thrive if he or she falls below a healthy weight and shows signs of emotional underdevelopment. Typically, failure to thrive is discovered during a child's infant years. Ideal weight is determined by com...

Children reach developmental milestones such as language, thinking, and motor skills at their own pace. Minor, temporary delays are usually no cause for alarm, but ongoing delay or multiple delays is called developmental delay.

Being tired is the familiar aftermath of physical exertion, prolonged labor or lack of sleep. When does being tired become a symptom of a condition? Fatigue, malaise, lassitude, exhaustion are all subtle variations of the same subjective feelings of not having enough energy to meet the demands of one's life.

Anemia occurs when the number of healthy red blood cells (RBCs) in the body is too low. Red cells carry oxygen to all the body's tissues, so a low red blood cell count indicates that the amount of oxygen in the blood is lower than it should be. Ma...

Fatigue is a term used to to describe the general overall feeling of tiredness and/or a lack of energy. Other words that are sometimes used in place of fatigue include exhaustion, weariness, and lethargy. According to the National Institutes of He...

Paleness, also known as pale complexion or pallor, is an unusual lightness of skin color when compared with your normal hue. Paleness is caused by reduced blood flow or a decreased number of red blood cells. Paleness can be generalized (all over) ...

Many people experience feel short of breath during strenuous activity if they are not accustomed to exercise. If you have a sudden onset of difficulty breathing doing a normal routine, it may be a medical emergency.

Shortness of breath on exertion (SOBOE) is when you have difficulty breathing while performing a physical activity. SOBOE can occur during routine activities like walking up a flight of stairs. You are more likely to feel shortness of breath when ...